drivers/staging/rtl8192e/rtl819x_HTProc.c

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * This program is distributed in the hope that it will be useful, but WITHOUT
   5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   6  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   7  * more details.
   8  *
   9  * You should have received a copy of the GNU General Public License along with
  10  * this program; if not, write to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  12  *
  13  * The full GNU General Public License is included in this distribution in the
  14  * file called LICENSE.
  15  *
  16  * Contact Information:
  17  * wlanfae <wlanfae@realtek.com>
  18 ******************************************************************************/
  19 #include "rtllib.h"
  20 #include "rtl819x_HT.h"
  21 u8 MCS_FILTER_ALL[16] = {
  22         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  23         0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  24 };
  25
  26 u8 MCS_FILTER_1SS[16] = {
  27         0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  28         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  29 ;
  30
  31 u16 MCS_DATA_RATE[2][2][77] = {
  32         {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
  33          260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
  34          468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
  35          182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
  36          181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
  37          312, 351, 312, 351, 390, 390, 429},
  38         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  39          43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
  40          578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
  41          173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
  42          231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
  43          433, 433, 477} },
  44         {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
  45          540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
  46          864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
  47          378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
  48          378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
  49          729, 648, 729, 810, 810, 891},
  50         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
  51          600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
  52          960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
  53          420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
  54          420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
  55          810, 720, 810, 900, 900, 990} }
  56 };
  57
  58 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  59
  60 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  61
  62 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  63
  64 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  65
  66 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  67
  68 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  69
  70 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  71
  72 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  73
  74 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
  75
  76 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
  77
  78 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  79
  80 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  81
  82 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
  83 {
  84         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
  85
  86         pHTInfo->bAcceptAddbaReq = 1;
  87
  88         pHTInfo->bRegShortGI20MHz = 1;
  89         pHTInfo->bRegShortGI40MHz = 1;
  90
  91         pHTInfo->bRegBW40MHz = 1;
  92
  93         if (pHTInfo->bRegBW40MHz)
  94                 pHTInfo->bRegSuppCCK = 1;
  95         else
  96                 pHTInfo->bRegSuppCCK = true;
  97
  98         pHTInfo->nAMSDU_MaxSize = 7935UL;
  99         pHTInfo->bAMSDU_Support = 0;
 100
 101         pHTInfo->bAMPDUEnable = 1;
 102         pHTInfo->AMPDU_Factor = 2;
 103         pHTInfo->MPDU_Density = 0;
 104
 105         pHTInfo->SelfMimoPs = 3;
 106         if (pHTInfo->SelfMimoPs == 2)
 107                 pHTInfo->SelfMimoPs = 3;
 108         ieee->bTxDisableRateFallBack = 0;
 109         ieee->bTxUseDriverAssingedRate = 0;
 110
 111         ieee->bTxEnableFwCalcDur = 1;
 112
 113         pHTInfo->bRegRT2RTAggregation = 1;
 114
 115         pHTInfo->bRegRxReorderEnable = 1;
 116         pHTInfo->RxReorderWinSize = 64;
 117         pHTInfo->RxReorderPendingTime = 30;
 118 }
 119
 120 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
 121 {
 122
 123         static u8       EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 124         struct ht_capab_ele *pCapELE;
 125
 126         if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
 127                 RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
 128                 pCapELE = (struct ht_capab_ele *)(&CapIE[4]);
 129         } else
 130                 pCapELE = (struct ht_capab_ele *)(&CapIE[0]);
 131
 132         RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Capability>. Called by %s\n",
 133                      TitleString);
 134
 135         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupported Channel Width = %s\n",
 136                      (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
 137         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 20M = %s\n",
 138                      (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
 139         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 40M = %s\n",
 140                      (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
 141         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport TX STBC = %s\n",
 142                      (pCapELE->TxSTBC) ? "YES" : "NO");
 143         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMSDU Size = %s\n",
 144                      (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
 145         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport CCK in 20/40 mode = %s\n",
 146                      (pCapELE->DssCCk) ? "YES" : "NO");
 147         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMPDU Factor = %d\n",
 148                      pCapELE->MaxRxAMPDUFactor);
 149         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMPDU Density = %d\n",
 150                      pCapELE->MPDUDensity);
 151         RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n",
 152                      pCapELE->MCS[0], pCapELE->MCS[1], pCapELE->MCS[2],
 153                      pCapELE->MCS[3], pCapELE->MCS[4]);
 154         return;
 155
 156 }
 157
 158 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
 159 {
 160
 161         static u8       EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 162         struct ht_info_ele *pHTInfoEle;
 163
 164         if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
 165                 RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
 166                 pHTInfoEle = (struct ht_info_ele *)(&InfoIE[4]);
 167         } else
 168                 pHTInfoEle = (struct ht_info_ele *)(&InfoIE[0]);
 169
 170
 171         RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Information Element>. "
 172                      "Called by %s\n", TitleString);
 173
 174         RTLLIB_DEBUG(RTLLIB_DL_HT, "\tPrimary channel = %d\n",
 175                      pHTInfoEle->ControlChl);
 176         RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSenondary channel =");
 177         switch (pHTInfoEle->ExtChlOffset) {
 178         case 0:
 179                 RTLLIB_DEBUG(RTLLIB_DL_HT, "Not Present\n");
 180                 break;
 181         case 1:
 182                 RTLLIB_DEBUG(RTLLIB_DL_HT, "Upper channel\n");
 183                 break;
 184         case 2:
 185                 RTLLIB_DEBUG(RTLLIB_DL_HT, "Reserved. Eooro!!!\n");
 186                 break;
 187         case 3:
 188                 RTLLIB_DEBUG(RTLLIB_DL_HT, "Lower Channel\n");
 189                 break;
 190         }
 191         RTLLIB_DEBUG(RTLLIB_DL_HT, "\tRecommended channel width = %s\n",
 192                      (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
 193
 194         RTLLIB_DEBUG(RTLLIB_DL_HT, "\tOperation mode for protection = ");
 195         switch (pHTInfoEle->OptMode) {
 196         case 0:
 197                 RTLLIB_DEBUG(RTLLIB_DL_HT, "No Protection\n");
 198                 break;
 199         case 1:
 200                 RTLLIB_DEBUG(RTLLIB_DL_HT, "HT non-member protection mode\n");
 201                 break;
 202         case 2:
 203                 RTLLIB_DEBUG(RTLLIB_DL_HT, "Suggest to open protection\n");
 204                 break;
 205         case 3:
 206                 RTLLIB_DEBUG(RTLLIB_DL_HT, "HT mixed mode\n");
 207                 break;
 208         }
 209
 210         RTLLIB_DEBUG(RTLLIB_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x]"
 211                      "[%x]\n", pHTInfoEle->BasicMSC[0], pHTInfoEle->BasicMSC[1],
 212                      pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3],
 213                      pHTInfoEle->BasicMSC[4]);
 214 }
 215
 216 static bool IsHTHalfNmode40Bandwidth(struct rtllib_device *ieee)
 217 {
 218         bool                    retValue = false;
 219         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 220
 221         if (pHTInfo->bCurrentHTSupport == false)
 222                 retValue = false;
 223         else if (pHTInfo->bRegBW40MHz == false)
 224                 retValue = false;
 225         else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 226                 retValue = false;
 227         else if (((struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf))->ChlWidth)
 228                 retValue = true;
 229         else
 230                 retValue = false;
 231
 232         return retValue;
 233 }
 234
 235 static bool IsHTHalfNmodeSGI(struct rtllib_device *ieee, bool is40MHz)
 236 {
 237         bool                    retValue = false;
 238         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 239
 240         if (pHTInfo->bCurrentHTSupport == false)
 241                 retValue = false;
 242         else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 243                 retValue = false;
 244         else if (is40MHz) {
 245                 if (((struct ht_capab_ele *)
 246                     (pHTInfo->PeerHTCapBuf))->ShortGI40Mhz)
 247                         retValue = true;
 248                 else
 249                         retValue = false;
 250         } else {
 251                 if (((struct ht_capab_ele *)
 252                    (pHTInfo->PeerHTCapBuf))->ShortGI20Mhz)
 253                         retValue = true;
 254                 else
 255                         retValue = false;
 256         }
 257
 258         return retValue;
 259 }
 260
 261 u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 262 {
 263
 264         u8      is40MHz;
 265         u8      isShortGI;
 266
 267         is40MHz  =  (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
 268         isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
 269
 270         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 271 }
 272
 273
 274 u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 275 {
 276         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 277
 278         u8      is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
 279         u8      isShortGI = (pHTInfo->bCurBW40MHz) ?
 280                             ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
 281                             ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
 282         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 283 }
 284
 285 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 286 {
 287         u16     CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 288                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 289         u8      is40MHz = 0;
 290         u8      isShortGI = 0;
 291
 292         if (nDataRate < 12) {
 293                 return CCKOFDMRate[nDataRate];
 294         } else {
 295                 if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
 296                         is40MHz = 0;
 297                         isShortGI = 0;
 298                 } else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
 299                         is40MHz = 1;
 300                         isShortGI = 0;
 301
 302                 } else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
 303                         is40MHz = 0;
 304                         isShortGI = 1;
 305                 } else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
 306                         is40MHz = 1;
 307                         isShortGI = 1;
 308                 }
 309                 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 310         }
 311 }
 312
 313 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
 314 {
 315         bool                    retValue = false;
 316         struct rtllib_network *net = &ieee->current_network;
 317
 318         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 319             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 320             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 321             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 322             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 323             (net->ralink_cap_exist))
 324                 retValue = true;
 325         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 326                 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 327                 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 328                 (net->broadcom_cap_exist))
 329                 retValue = true;
 330         else if (net->bssht.bdRT2RTAggregation)
 331                 retValue = true;
 332         else
 333                 retValue = false;
 334
 335         return retValue;
 336 }
 337
 338 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
 339 {
 340         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 341         struct rtllib_network *net = &ieee->current_network;
 342
 343         if (net->bssht.bdRT2RTAggregation) {
 344                 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
 345                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
 346                         pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
 347                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
 348                         pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
 349         } else if (net->broadcom_cap_exist)
 350                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 351         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 352                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 353                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
 354                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 355         else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 356                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 357                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 358                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 359                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 360                   net->ralink_cap_exist)
 361                 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
 362         else if ((net->atheros_cap_exist) ||
 363                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 364                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
 365                 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
 366         else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 367                   net->cisco_cap_exist)
 368                 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
 369         else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 370                   net->marvell_cap_exist)
 371                 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
 372         else if (net->airgo_cap_exist)
 373                 pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
 374         else
 375                 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 376
 377         RTLLIB_DEBUG(RTLLIB_DL_IOT, "Joseph debug!! IOTPEER: %x\n",
 378                      pHTInfo->IOTPeer);
 379 }
 380
 381 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 382 {
 383         return 0;
 384 }
 385
 386
 387 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 388 {
 389         bool retValue = false;
 390
 391         return retValue;
 392 }
 393
 394 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
 395 {
 396         return false;
 397 }
 398
 399 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee, u8 *PeerMacAddr)
 400 {
 401         return false;
 402 }
 403
 404 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
 405                                  struct rtllib_network *network)
 406 {
 407         u8      retValue = 0;
 408
 409
 410         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 411                 retValue = 1;
 412
 413         return retValue;
 414 }
 415
 416 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
 417 {
 418         u8      retValue = 0;
 419
 420         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 421                 retValue = 1;
 422         return retValue;
 423 }
 424
 425 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
 426 {
 427         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 428
 429         pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
 430
 431         if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 432                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
 433
 434         if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
 435                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
 436
 437 }
 438
 439 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
 440 {
 441         pHTInfo->IOTAction = 0;
 442         pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 443         pHTInfo->IOTRaFunc = 0;
 444 }
 445
 446 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 447                                   u8 *len, u8 IsEncrypt, bool bAssoc)
 448 {
 449         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 450         struct ht_capab_ele *pCapELE = NULL;
 451
 452         if ((posHTCap == NULL) || (pHT == NULL)) {
 453                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTCap or pHTInfo can't be "
 454                              "null in HTConstructCapabilityElement()\n");
 455                 return;
 456         }
 457         memset(posHTCap, 0, *len);
 458
 459         if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
 460                 u8      EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 461
 462                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 463                 pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
 464                 *len = 30 + 2;
 465         } else {
 466                 pCapELE = (struct ht_capab_ele *)posHTCap;
 467                 *len = 26 + 2;
 468         }
 469
 470         pCapELE->AdvCoding              = 0;
 471         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 472                 pCapELE->ChlWidth = 0;
 473         else
 474                 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
 475
 476         pCapELE->MimoPwrSave            = pHT->SelfMimoPs;
 477         pCapELE->GreenField             = 0;
 478         pCapELE->ShortGI20Mhz           = 1;
 479         pCapELE->ShortGI40Mhz           = 1;
 480
 481         pCapELE->TxSTBC                 = 1;
 482         pCapELE->RxSTBC                 = 0;
 483         pCapELE->DelayBA                = 0;
 484         pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 485         pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
 486         pCapELE->PSMP = 0;
 487         pCapELE->LSigTxopProtect = 0;
 488
 489
 490         RTLLIB_DEBUG(RTLLIB_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d "
 491                      "DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize,
 492                      pCapELE->DssCCk);
 493
 494         if (IsEncrypt) {
 495                 pCapELE->MPDUDensity    = 7;
 496                 pCapELE->MaxRxAMPDUFactor       = 2;
 497         } else {
 498                 pCapELE->MaxRxAMPDUFactor       = 3;
 499                 pCapELE->MPDUDensity    = 0;
 500         }
 501
 502         memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
 503         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 504         memset(pCapELE->TxBFCap, 0, 4);
 505
 506         pCapELE->ASCap = 0;
 507
 508         if (bAssoc) {
 509                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
 510                         pCapELE->MCS[1] &= 0x7f;
 511
 512                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
 513                         pCapELE->MCS[1] &= 0xbf;
 514
 515                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
 516                         pCapELE->MCS[1] &= 0x00;
 517
 518                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 519                         pCapELE->ShortGI40Mhz           = 0;
 520
 521                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 522                         pCapELE->ChlWidth = 0;
 523                         pCapELE->MCS[1] = 0;
 524                 }
 525         }
 526 }
 527
 528 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 529                             u8 *len, u8 IsEncrypt)
 530 {
 531         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 532         struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 533
 534         if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
 535                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTInfo or pHTInfoEle can't be "
 536                              "null in HTConstructInfoElement()\n");
 537                 return;
 538         }
 539
 540         memset(posHTInfo, 0, *len);
 541         if ((ieee->iw_mode == IW_MODE_ADHOC) ||
 542             (ieee->iw_mode == IW_MODE_MASTER)) {
 543                 pHTInfoEle->ControlChl  = ieee->current_network.channel;
 544                 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
 545                                             HT_EXTCHNL_OFFSET_NO_EXT :
 546                                             (ieee->current_network.channel <= 6)
 547                                             ? HT_EXTCHNL_OFFSET_UPPER :
 548                                             HT_EXTCHNL_OFFSET_LOWER);
 549                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 550                 pHTInfoEle->RIFS                        = 0;
 551                 pHTInfoEle->PSMPAccessOnly              = 0;
 552                 pHTInfoEle->SrvIntGranularity           = 0;
 553                 pHTInfoEle->OptMode                     = pHT->CurrentOpMode;
 554                 pHTInfoEle->NonGFDevPresent             = 0;
 555                 pHTInfoEle->DualBeacon                  = 0;
 556                 pHTInfoEle->SecondaryBeacon             = 0;
 557                 pHTInfoEle->LSigTxopProtectFull         = 0;
 558                 pHTInfoEle->PcoActive                   = 0;
 559                 pHTInfoEle->PcoPhase                    = 0;
 560
 561                 memset(pHTInfoEle->BasicMSC, 0, 16);
 562
 563
 564                 *len = 22 + 2;
 565
 566         } else {
 567                 *len = 0;
 568         }
 569 }
 570
 571 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 572                                 u8 *len)
 573 {
 574         if (posRT2RTAgg == NULL) {
 575                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "posRT2RTAgg can't be null in "
 576                              "HTConstructRT2RTAggElement()\n");
 577                 return;
 578         }
 579         memset(posRT2RTAgg, 0, *len);
 580         *posRT2RTAgg++ = 0x00;
 581         *posRT2RTAgg++ = 0xe0;
 582         *posRT2RTAgg++ = 0x4c;
 583         *posRT2RTAgg++ = 0x02;
 584         *posRT2RTAgg++ = 0x01;
 585
 586         *posRT2RTAgg = 0x30;
 587
 588         if (ieee->bSupportRemoteWakeUp)
 589                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 590
 591         *len = 6 + 2;
 592 }
 593
 594 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 595 {
 596         u8 i;
 597
 598         if (pOperateMCS == NULL) {
 599                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "pOperateMCS can't be null"
 600                              " in HT_PickMCSRate()\n");
 601                 return false;
 602         }
 603
 604         switch (ieee->mode) {
 605         case IEEE_A:
 606         case IEEE_B:
 607         case IEEE_G:
 608                 for (i = 0; i <= 15; i++)
 609                         pOperateMCS[i] = 0;
 610                 break;
 611         case IEEE_N_24G:
 612         case IEEE_N_5G:
 613                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 614                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 615                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 616                 break;
 617         default:
 618                 break;
 619
 620         }
 621
 622         return true;
 623 }
 624
 625 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 626                        u8 *pMCSFilter)
 627 {
 628         u8              i, j;
 629         u8              bitMap;
 630         u8              mcsRate = 0;
 631         u8              availableMcsRate[16];
 632
 633         if (pMCSRateSet == NULL || pMCSFilter == NULL) {
 634                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "pMCSRateSet or pMCSFilter can't "
 635                              "be null in HTGetHighestMCSRate()\n");
 636                 return false;
 637         }
 638         for (i = 0; i < 16; i++)
 639                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 640
 641         for (i = 0; i < 16; i++) {
 642                 if (availableMcsRate[i] != 0)
 643                         break;
 644         }
 645         if (i == 16)
 646                 return false;
 647
 648         for (i = 0; i < 16; i++) {
 649                 if (availableMcsRate[i] != 0) {
 650                         bitMap = availableMcsRate[i];
 651                         for (j = 0; j < 8; j++) {
 652                                 if ((bitMap%2) != 0) {
 653                                         if (HTMcsToDataRate(ieee, (8*i+j)) >
 654                                             HTMcsToDataRate(ieee, mcsRate))
 655                                                 mcsRate = (8*i+j);
 656                                 }
 657                                 bitMap = bitMap>>1;
 658                         }
 659                 }
 660         }
 661         return mcsRate | 0x80;
 662 }
 663
 664 u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS, u8 *pOperateMCS)
 665 {
 666
 667         u8 i;
 668
 669         for (i = 0; i <= 15; i++)
 670                 pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
 671                                  pSupportMCS[i];
 672
 673         HT_PickMCSRate(ieee, pOperateMCS);
 674
 675         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 676                 pOperateMCS[1] = 0;
 677
 678         for (i = 2; i <= 15; i++)
 679                 pOperateMCS[i] = 0;
 680
 681         return true;
 682 }
 683
 684 void HTSetConnectBwMode(struct rtllib_device *ieee,
 685                         enum ht_channel_width Bandwidth,
 686                         enum ht_extchnl_offset Offset);
 687
 688 void HTOnAssocRsp(struct rtllib_device *ieee)
 689 {
 690         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 691         struct ht_capab_ele *pPeerHTCap = NULL;
 692         struct ht_info_ele *pPeerHTInfo = NULL;
 693         u16 nMaxAMSDUSize = 0;
 694         u8 *pMcsFilter = NULL;
 695
 696         static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 697         static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 698
 699         if (pHTInfo->bCurrentHTSupport == false) {
 700                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "<=== HTOnAssocRsp(): "
 701                              "HT_DISABLE\n");
 702                 return;
 703         }
 704         RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
 705
 706         if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 707                 pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
 708         else
 709                 pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
 710
 711         if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 712                 pPeerHTInfo = (struct ht_info_ele *)
 713                              (&pHTInfo->PeerHTInfoBuf[4]);
 714         else
 715                 pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
 716
 717         RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA | RTLLIB_DL_HT, pPeerHTCap,
 718                           sizeof(struct ht_capab_ele));
 719         HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 720                           (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 721         pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 722                                  true : false);
 723
 724         pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
 725                                     ((pPeerHTCap->ShortGI20Mhz == 1) ?
 726                                     true : false) : false);
 727         pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
 728                                      ((pPeerHTCap->ShortGI40Mhz == 1) ?
 729                                      true : false) : false);
 730
 731         pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
 732                                ((pPeerHTCap->DssCCk == 1) ? true :
 733                                false) : false);
 734
 735
 736         pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 737
 738         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
 739
 740         if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
 741                 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
 742         else
 743                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 744
 745         pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 746         if (ieee->rtllib_ap_sec_type &&
 747            (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
 748                 if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
 749                                 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
 750                         pHTInfo->bCurrentAMPDUEnable = false;
 751         }
 752
 753         if (!pHTInfo->bRegRT2RTAggregation) {
 754                 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
 755                         pHTInfo->CurrentAMPDUFactor =
 756                                                  pPeerHTCap->MaxRxAMPDUFactor;
 757                 else
 758                         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 759
 760         } else {
 761                 if (ieee->current_network.bssht.bdRT2RTAggregation) {
 762                         if (ieee->pairwise_key_type != KEY_TYPE_NA)
 763                                 pHTInfo->CurrentAMPDUFactor =
 764                                                  pPeerHTCap->MaxRxAMPDUFactor;
 765                         else
 766                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 767                 } else {
 768                         if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
 769                                 pHTInfo->CurrentAMPDUFactor =
 770                                                  pPeerHTCap->MaxRxAMPDUFactor;
 771                         else
 772                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
 773                 }
 774         }
 775         if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
 776                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 777         else
 778                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
 779         if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 780                 pHTInfo->bCurrentAMPDUEnable = false;
 781                 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
 782                 pHTInfo->ForcedAMSDUMaxSize = 7935;
 783         }
 784         pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
 785
 786         if (pPeerHTCap->MCS[0] == 0)
 787                 pPeerHTCap->MCS[0] = 0xff;
 788
 789         HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
 790
 791         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
 792
 793         pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
 794         if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
 795                 pMcsFilter = MCS_FILTER_1SS;
 796         else
 797                 pMcsFilter = MCS_FILTER_ALL;
 798         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 799                                    ieee->dot11HTOperationalRateSet, pMcsFilter);
 800         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 801
 802         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 803 }
 804
 805 void HTInitializeHTInfo(struct rtllib_device *ieee)
 806 {
 807         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 808
 809         RTLLIB_DEBUG(RTLLIB_DL_HT, "===========>%s()\n", __func__);
 810         pHTInfo->bCurrentHTSupport = false;
 811
 812         pHTInfo->bCurBW40MHz = false;
 813         pHTInfo->bCurTxBW40MHz = false;
 814
 815         pHTInfo->bCurShortGI20MHz = false;
 816         pHTInfo->bCurShortGI40MHz = false;
 817         pHTInfo->bForcedShortGI = false;
 818
 819         pHTInfo->bCurSuppCCK = true;
 820
 821         pHTInfo->bCurrent_AMSDU_Support = false;
 822         pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 823         pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 824         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 825
 826         memset((void *)(&(pHTInfo->SelfHTCap)), 0,
 827                 sizeof(pHTInfo->SelfHTCap));
 828         memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
 829                 sizeof(pHTInfo->SelfHTInfo));
 830         memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
 831                 sizeof(pHTInfo->PeerHTCapBuf));
 832         memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
 833                 sizeof(pHTInfo->PeerHTInfoBuf));
 834
 835         pHTInfo->bSwBwInProgress = false;
 836         pHTInfo->ChnlOp = CHNLOP_NONE;
 837
 838         pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
 839
 840         pHTInfo->bCurrentRT2RTAggregation = false;
 841         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 842         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 843
 844         pHTInfo->IOTPeer = 0;
 845         pHTInfo->IOTAction = 0;
 846         pHTInfo->IOTRaFunc = 0;
 847
 848         {
 849                 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
 850
 851                 RegHTSuppRateSets[0] = 0xFF;
 852                 RegHTSuppRateSets[1] = 0xFF;
 853                 RegHTSuppRateSets[4] = 0x01;
 854         }
 855 }
 856
 857 void HTInitializeBssDesc(struct bss_ht *pBssHT)
 858 {
 859
 860         pBssHT->bdSupportHT = false;
 861         memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
 862         pBssHT->bdHTCapLen = 0;
 863         memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
 864         pBssHT->bdHTInfoLen = 0;
 865
 866         pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
 867
 868         pBssHT->bdRT2RTAggregation = false;
 869         pBssHT->bdRT2RTLongSlotTime = false;
 870         pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 871 }
 872
 873 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 874                                    struct rtllib_network *pNetwork)
 875 {
 876         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 877         u8      bIOTAction = 0;
 878
 879         RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
 880         /* unmark bEnableHT flag here is the same reason why unmarked in
 881          * function rtllib_softmac_new_net. WB 2008.09.10*/
 882         if (pNetwork->bssht.bdSupportHT) {
 883                 pHTInfo->bCurrentHTSupport = true;
 884                 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
 885
 886                 if (pNetwork->bssht.bdHTCapLen > 0 &&
 887                     pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
 888                         memcpy(pHTInfo->PeerHTCapBuf,
 889                                pNetwork->bssht.bdHTCapBuf,
 890                                pNetwork->bssht.bdHTCapLen);
 891
 892                 if (pNetwork->bssht.bdHTInfoLen > 0 &&
 893                     pNetwork->bssht.bdHTInfoLen <=
 894                     sizeof(pHTInfo->PeerHTInfoBuf))
 895                         memcpy(pHTInfo->PeerHTInfoBuf,
 896                                pNetwork->bssht.bdHTInfoBuf,
 897                                pNetwork->bssht.bdHTInfoLen);
 898
 899                 if (pHTInfo->bRegRT2RTAggregation) {
 900                         pHTInfo->bCurrentRT2RTAggregation =
 901                                  pNetwork->bssht.bdRT2RTAggregation;
 902                         pHTInfo->bCurrentRT2RTLongSlotTime =
 903                                  pNetwork->bssht.bdRT2RTLongSlotTime;
 904                         pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
 905                 } else {
 906                         pHTInfo->bCurrentRT2RTAggregation = false;
 907                         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 908                         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 909                 }
 910
 911                 HTIOTPeerDetermine(ieee);
 912
 913                 pHTInfo->IOTAction = 0;
 914                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
 915                 if (bIOTAction)
 916                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
 917
 918                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
 919                 if (bIOTAction)
 920                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
 921
 922                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
 923                 if (bIOTAction)
 924                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
 925
 926
 927                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
 928                 if (bIOTAction)
 929                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
 930
 931                 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
 932                 if (bIOTAction)
 933                         pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 934                 bIOTAction = HTIOTActIsCCDFsync(ieee);
 935                 if (bIOTAction)
 936                         pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
 937         } else {
 938                 pHTInfo->bCurrentHTSupport = false;
 939                 pHTInfo->bCurrentRT2RTAggregation = false;
 940                 pHTInfo->bCurrentRT2RTLongSlotTime = false;
 941                 pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 942
 943                 pHTInfo->IOTAction = 0;
 944                 pHTInfo->IOTRaFunc = 0;
 945         }
 946 }
 947
 948 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 949                                      struct rtllib_network *pNetwork)
 950 {
 951         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 952         struct ht_info_ele *pPeerHTInfo =
 953                  (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
 954
 955         if (pHTInfo->bCurrentHTSupport) {
 956                 if (pNetwork->bssht.bdHTInfoLen != 0)
 957                         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 958         }
 959 }
 960 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 961
 962 void HTUseDefaultSetting(struct rtllib_device *ieee)
 963 {
 964         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 965
 966         if (pHTInfo->bEnableHT) {
 967                 pHTInfo->bCurrentHTSupport = true;
 968                 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
 969
 970                 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
 971                 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
 972
 973                 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
 974
 975                 if (ieee->iw_mode == IW_MODE_ADHOC)
 976                         ieee->current_network.qos_data.active =
 977                                  ieee->current_network.qos_data.supported;
 978                 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 979                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 980
 981                 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 982                 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 983
 984                 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
 985
 986                 HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
 987                                 ieee->dot11HTOperationalRateSet);
 988                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 989                                            ieee->dot11HTOperationalRateSet,
 990                                            MCS_FILTER_ALL);
 991                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 992
 993         } else {
 994                 pHTInfo->bCurrentHTSupport = false;
 995         }
 996 }
 997
 998 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 999 {
1000         if (ieee->pHTInfo->bCurrentHTSupport) {
1001                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
1002                         RTLLIB_DEBUG(RTLLIB_DL_HT, "HT CONTROL FILED "
1003                                      "EXIST!!\n");
1004                         return true;
1005                 }
1006         }
1007         return false;
1008 }
1009
1010 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
1011 {
1012         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1013
1014         RTLLIB_DEBUG(RTLLIB_DL_HT, "======>%s()\n", __func__);
1015         if (pHTInfo->bCurBW40MHz) {
1016                 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
1017                         ieee->set_chan(ieee->dev,
1018                                        ieee->current_network.channel + 2);
1019                 else if (pHTInfo->CurSTAExtChnlOffset ==
1020                          HT_EXTCHNL_OFFSET_LOWER)
1021                         ieee->set_chan(ieee->dev,
1022                                        ieee->current_network.channel - 2);
1023                 else
1024                         ieee->set_chan(ieee->dev,
1025                                        ieee->current_network.channel);
1026
1027                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
1028                                        pHTInfo->CurSTAExtChnlOffset);
1029         } else {
1030                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1031                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
1032                                        HT_EXTCHNL_OFFSET_NO_EXT);
1033         }
1034
1035         pHTInfo->bSwBwInProgress = false;
1036 }
1037
1038 void HTSetConnectBwMode(struct rtllib_device *ieee,
1039                         enum ht_channel_width Bandwidth,
1040                         enum ht_extchnl_offset Offset)
1041 {
1042         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1043
1044         if (pHTInfo->bRegBW40MHz == false)
1045                 return;
1046
1047         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
1048                 Bandwidth = HT_CHANNEL_WIDTH_20;
1049
1050         if (pHTInfo->bSwBwInProgress) {
1051                 pr_info("%s: bSwBwInProgress!!\n", __func__);
1052                 return;
1053         }
1054         if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
1055                 if (ieee->current_network.channel < 2 &&
1056                     Offset == HT_EXTCHNL_OFFSET_LOWER)
1057                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1058                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
1059                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
1060                         pHTInfo->bCurBW40MHz = true;
1061                         pHTInfo->CurSTAExtChnlOffset = Offset;
1062                 } else {
1063                         pHTInfo->bCurBW40MHz = false;
1064                         pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1065                 }
1066         } else {
1067                 pHTInfo->bCurBW40MHz = false;
1068                 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1069         }
1070
1071         pr_info("%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
1072                pHTInfo->bCurBW40MHz);
1073
1074         pHTInfo->bSwBwInProgress = true;
1075
1076         HTSetConnectBwModeCallback(ieee);
1077 }